Sambb, hope you have a good and safe Boston.
I've backed off from a half in three weeks. Excuses, excuses, but just haven't maintained a groove since my last 20K run -- food poisoning and a couple of colds popped up. So I'm shifting my goals, and instead will aim to get my 10K time down to mid-40 mins by fall and save these impressive but ridiculous distances for you fellas
No idea if I can get there, but that's part of the challenge.